Home / 3,011.63-4,519.26-1,280.25

Finding the Fourth Proportional to 3,011.63, 4,519.26 and 1,280.25

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Solution

The fourth proportional to 3,011.63, 4,519.26 and 1,280.25 is: 1,921.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.63 : 4,519.26 = 1,280.25 : x
  2. Step 2: Convert to fraction form
    3,011.63/4,519.26 = 1,280.25/x
  3. Step 3: Cross multiply
    3,011.63x = 4,519.26 × 1,280.25
  4. Step 4: Simplify right side
    3,011.63x = 5,785,782.62
  5. Step 5: Solve for x
    x = 5,785,782.62/3,011.63
  6. Step 6: Final answer
    x = 1,921.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.